Dynamic response analysis of single-span guideway caused by high speed maglev train

High speed maglev is one of the most important reformations in the ground transportation systems because of its no physical contact nature. This paper intends to study the dynamic response of the single-span guideway induced by moving maglev train. The dynamic model of the maglev train-guideway system is established. In this model, a maglev train consists of three vehicles and each vehicle is regarded as a multibody system with 34 degrees-of-freedom. The guideway is modeled as a simply supported beam. Considering the motion-dependent nature of electromagnetic forces in the maglev system, an iterative approach is presented to compute the dynamic response of a maglev train-guideway system. The histories of the train traversing the guideways are simulated and the dynamic responses of the guideway and the train vehicles are calculated. A field experiment is carried out to verify the results of the analysis. The resonant conditions of single-span guideway are analyzed. The results show that all the dynamic indexes of train-guideway system are far less than permissive values of railway and maglev system, the vertical resonant of guideways caused by periodical excitations of the train will not happen.

[1]  J. D. Yau,et al.  Vibration control of maglev vehicles traveling over a flexible guideway , 2009 .

[2]  P. K. Sinha.  ELECTROMAGNETIC SUSPENSION DYNAMICS & CONTROL , 1987 .

[3]  Nan Zhang,et al.  Analysis of resonance mechanism and conditions of train-bridge system , 2006 .

[4]  S. S. Chen,et al.  Dynamic Characteristics of Magnetically-Levitated Vehicle Systems , 1997 .

[5]  W. Kortüm,et al.  Dynamic Interactions Between Travelling Vehicles and Guideway Systems , 1981 .

[6]  L Fryba,et al.  VIBRATION OF SOLIDS AND STRUCTURES UNDER MOVING LOADS (3RD EDITION) , 1999 .

[7]  Mark A. Bradford,et al.  Lateral dynamic interaction analysis of a train–girder–pier system , 2008 .

[8]  Xuyou Long,et al.  Resonance characteristics of two-span continuous beam under moving high speed trains , 2010 .

[9]  Yeong-Bin Yang,et al.  Vibration of simple beams due to trains moving at high speeds , 1997 .

[10]  Shen-Haw Ju,et al.  Resonance characteristics of high-speed trains passing simply supported bridges , 2003 .

[11]  Roger M. Goodall.  On the robustness of flux feedback control for electro-magnetic Maglev controllers , 2000 .

[12]  Jianjun Wu,et al.  NUMERICAL ANALYSES ON DYNAMIC CONTROL OF FIVE-DEGREE-OF-FREEDOM MAGLEV VEHICLE MOVING ON FLEXIBLE GUIDEWAYS , 2000 .

[13]  Yeong-Bin Yang,et al.  Vehicle-bridge interaction dynamics: with applications to high-speed railways , 2004 .

[14]  Jian Li,et al.  Vibration analysis of the maglev guideway with the moving load , 2007 .